Improvement in b aung-presses



N dinard Startet @aan entre JAMES4 M. ALBERTSON, OE NEwl LONDON,CONNECTICUT.

Letters Patent No. 97,471, dated December 7,'1869 antedated November2'5, l1869.

nunovnMeN-rm BALING-Pnnssns.

The Schedule referred in these Letters Patent and making part of thesame.

Be it known that I, J AMES M. ALBERTsoN, of theV l town of NewLondonrcouuty of New London, State of Connecticut, have `invented. a newand useful Iniprovement in Berling-Presses; `and thatthe following is afull, clear, and exactdescripton of the same, 4ret'- `erence being hadto the annexedl drawings, making a same height.

As shown in fig. 1, the bottom flange of the pedestal A. rests on theground, and to the top flange is attached, in any convenient way, thepress-box.

Upon the cylindrical portion connecting these two* flanges, is placedthe gear-'wheel O, which revolves on it, while at the Sametime thispedestal serves as the entire support .for the whole4 press-work. Tothis wheel C, the lever for revolving is attached.

Into this wheel O, the pinionsB B' are geared, which are attached to thevertical screws D D.

Y These' screws are held n position by suitable boxes H'H, and passthrough nuts E E, attached to the -follower' or platen.

The operation of the whole is as follows:

l, When the wheel c is revolved about the pedestal A,

it gives motion to the screwsD D, through the pinions B B', vwhichscrews raise and lower Vthe follower `or platen.

It will be seen by this, that no-twist or strain can go above the topiiange of the pedestal A, consequently'thre is no strain upon thepress-box, which would be the case'if the machinery for operating wereplaced .on the top of the press.

g The screws D D' being ou opposite sides of the box, theycounterbalance eachother and relieve the platen from friction in passingup 'and down the box, which, when it is 'subjected to thetwist of thescrew, is very great.

It is very evident that thescrews, being independent of the lever,cannot change its position, Iand it therefore remains at the same heightwhen the press is at wol-k.

I do not claim the pedestal A', simply asa support for the press-frame,but only its usev in this respect, with the combination claimed.

, Claims.

1 claim-'- f l. The pedestal A,`provided with two plates or iangea andforming the connection .and support be tween the pressfraine and theground, when used in combination with the gear-wheel O, revolving aboutit, and transmitting the power applied to other ma- '-chineryforlworkiug the press, all arranged substantially as described.

2. In combination with the above arrangement,-the.

vertical screws D D and pinions B B', arranged and operatingsubstantially as described.

` JAMES M. 'ALBEIt'lStRlZ Witnesses:

G. S. DABoLL, H. J. OROCKER.

